The Mountain Hardwear Chocklite Jacket packs in its own pocket for light weather protection anywhere. Never get caught off guard with this tough, air-permeable utility jacket that stows fast and clips to a pack or harness. Its durable UPF 50 fabric and low-profile hood resists sun, rain and wind.

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CampSaver.com
refers to the men's version

You started the first pitch at a ridiculous hour so you'd be off the summit early, but you got off-route and now it's 1:00 and you're just starting the rappel as the clouds build ominously. Luckily, you stowed the Mountain Hardwear Men's Chocklite Jacket in its own pocket and clipped it to your harness, so if it does get damp and windy, you'll be protected by its tough, breathable, DWR-treated softshell fabric. The hood is low-profile to stay snug and out of the way, and cinch adjustments on the hem keep you dry and draft-free. Wear it in the strong alpine sun, too, and be stoked that the UPF 50 fabric keeps you from going all lobstery.